It will only get worse. Implement a number of things listed in this thread now. I recommend getting the SRC pregnancy shorts. I still wear the recovery shorts a couple of times a week. A support belt was next to useless for me. Physio, osteo, chiro, hydrotherapy, whatever you need to use your abs and thigh muscles to overcome the weakening in the pubic bones.

Keep your knees together at all times - sit to put on undies, pants etc. Reduce lifting as much as you can or anything that has you using one hip more than the other, like vacuuming or pushing shopping trolleys. If your other half can't pick up these tasks, look at getting a cleaner, grocery shopping online, outsourcing whatever you can.