TTC after Tubal Reversal

Good morning everyone! I'm new to Glow. Just a little history... I had a Tubal Reversal last April. I have 3 children from a previous marriage, but my boyfriend has none. We have been "actively" trying for about 3-4 months now. We're both taking vitamins, I'm using the ClearBlue ovulation kit and we've used the Preseed Lube the pat 2 months. My question is I got a "Peak" opk yesterday evening and we had sex last night. I'm feeling very bloated today and kind of crampy. Did anyone have implantation symptoms this early... as early as the day after? Also, I know it's nowhere near time to start testing, but how many dpo do you all normally begin testing? It's been 12, almost 13 years since I have done this and I didn't do any of this before so I am lost. Lol Thank you all so much!