there's a couple of things that might cause tightening - one being the progesterone meds, another being that, if you've not dtd for a while, you might be a bit "tighter" naturally. i know when DH is away for work, it's always a firmer fit first time around when we're together again because i think the muscles need more encouragement to stretch a bit (and i think, cos he hasnt had any for a while, his girth is a bit bigger...)
i've definitely felt different DTD every time since pg...
Just to throw out a completely different opinion - my clinic promotes dtd on the same night after embryo transfer. They told me there were studies that showed that sex increases the blood flow to that region and this increase can assist the embie in attaching.
Who knows?????????? I am going to give it a go because my previous 7 attempts i have completely abstained the whole tww and all bfn
Just throwing my 2 cents worth of input into this discussion.
I have always been told to DTD night before transfer for the same reason as stated by mollygirl. Apparently it increases one's chance of implantation and relax the cervix which makes transfer a lot easier (we always DTD b4 transfer and... well transfer is always smooth..never had a prob with bleeding after transfer). Clinic only recommends abstaining from DTD 24 hours after transfer.. not sure why but I guess it might disturb the cervix which needs to be closed tight to prevent infection and complications. Same goes with hot tubs, spas, saunas.. apparently it increases your body temp which is not good for implantation and bub.....
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