Hey mama, totally normal to worry about this! Sa 28 weeks, sexual activity is generally safe as long as you're feeling okay and walang complications, pero honestly best talaga to check with your OB kasi sila ang makakasabi based sa your specific situation, may mga cases talaga na kailangan mag-abstain for certain reasons, so better safe than sorry. A few of us pregnant mums did ask our doctors directly and they gave us the green light, pero it really depends sa bawat pregnancy, so don't hesitate to bring this up sa next check-up mo, okay? Congratulations sa first baby!