What do ya think

So I’m 40. With ten beautiful children (yes all from me) my 5th baby she died at 6 weeks old. I’ve had normal cycles until last year when it started to go from 28-32 then 49 to god knows what. My hormones are all normal (apparently says the drs) husband is 40. So the last cycle was 20th feb. Had positive opk at 37 days. Had a brown discharge 11 days later and now today 51 days after last cycle I’m not spotting/period. Who knows. All negatives p tests. But I got pregnant in December after 49 day cycle and caught pregnant at 3 days after period. But no baby just sack. So I’m not even sure what the hell is going on anymore. Bloody bodies. So I going to see if I can get pregnant day or so after period ended ?