Symptoms after Chemical?

I always get my bfp a little early. Right at 8dpo. This time was no different. On the 7th I got a nice, bright bfp. By the 10 they were all MUCH more faint. Almost nonexistent. On the 11th I started bleeding. Normal length for my period, 3-4 days. Just no cramps this time. My breasts are still incredibly sore. Smells are making my vomit. What gives? When will it stop? Husband wants to wait 6 months to TTC again but only after seeing a fertility specialist.